Global Patent Index - EP 2642104 A3

EP 2642104 A3 20180502 - Optimization of dual-fuel feeding in electronic controlled four-stroke piston compression ignited engines with gasous fuels

Title (en)

Optimization of dual-fuel feeding in electronic controlled four-stroke piston compression ignited engines with gasous fuels

Title (de)

Optimierung der Zweistoffzuführung von gasförmigen Kraftstoffen in elektronisch gesteuerten, kolbenkompressionsgezündeten Viertakt-Motoren

Title (fr)

Optimisation de l'alimentation en bicombustible de moteurs à allumage par compression à piston à quatre temps et commande électronique avec des combustibles gazeux

Publication

EP 2642104 A3 20180502 (EN)

Application

EP 13461509 A 20130304

Priority

PL 39833412 A 20120306

Abstract (en)

[origin: EP2642104A2] Realization of dual-powering four-stroke self-ignited engine, using alternative gaseous fuel, applied to air inlet system, charcteristic of alternative gaseous fuel applied in gaseous or liquid state to each cylinder's inlet duct independently, in doses identical or various for any individual cylinder, via individual injectors (10a, 10b, 10c...) driven by microprocessor programmable controller (2) preparing alternative gaseous fuel dose individually for given work cycle of given cylinder in given engine, in the way ensuring controllable alternative gaseous fuel and inducted air stream stratifying ratio, and knocking combustion detection (17) caused by alternative gaseous fuel overdosing is being made for each work cycle of each cylinder of given engine separately, and optimal energy value of both fuels summary dose for given work cycle of given engine's each cylinder is being stated by comparative analysis of crankshaft rotational speed unevenness in the ambit of angular crankshaft position ranges related to combustion process in particular cylinders of given engine, and the dose of basic diesel fuel is being reduced identically for all cylinders, or in various degrees for each cylinder, to keep unchanged or increased a combustion duration time of each cylinder, falling on each of his work cycles, comparing to identical conditions with basic powering only.

IPC 8 full level

F02D 41/00 (2006.01); F02D 19/06 (2006.01); F02D 19/10 (2006.01); F02D 35/02 (2006.01); F02D 41/14 (2006.01); F02D 41/22 (2006.01); F02D 41/26 (2006.01); F02D 41/30 (2006.01)

CPC (source: EP)

F02D 19/061 (2013.01); F02D 19/0642 (2013.01); F02D 19/066 (2013.01); F02D 19/0697 (2013.01); F02D 19/10 (2013.01); F02D 35/027 (2013.01); F02D 41/0025 (2013.01); F02D 41/0027 (2013.01); F02D 41/0085 (2013.01); F02D 41/1497 (2013.01); F02D 41/009 (2013.01); F02D 41/22 (2013.01); F02D 41/266 (2013.01); F02D 2041/3052 (2013.01); F02D 2400/11 (2013.01); Y02T 10/30 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2642104 A2 20130925; EP 2642104 A3 20180502; PL 221746 B1 20160531; PL 398334 A1 20130916

DOCDB simple family (application)

EP 13461509 A 20130304; PL 39833412 A 20120306